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4-Door Blazin'
81 Posts
Discussion Starter · #1 · (Edited)
Free MOD from GM!!!

Here's something for you to try when you're bored....I noticed a huge decrease in my gas mileage recently so I took my truck back to my dealership, they ran it through their scope and found nothing so they gave me 9 upgrades to my TCC (Tranny controller) and ECU (on-board car computer)....These are just GM's standard revisions, plu I shift a little cripser now AND my gas mileage has improved. Just go there tell them your truck is hard on gas all of the sudden and if they turn up no codes, whammo, free upgrade. This, ofcourse, will only work if you are still within your warranty.

Hope this helps someone.

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